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About J. Peter Clark
(Top Expert on this page)

Expertise
How various processed foods are made; ways to improve manufacturing; how to make a new food product.

Experience
Employment history: Research Engineer, U.S.Agricultural Research Service, Associate Professor Chemical Engineering, Virginia Tech, Director of Research, Continental Baking Company, President, Epstein Process Engineering, Inc., Vice Presdent Technology, Fluor Daniel, Inc., Consultant to the Process Industries

Organizations: American Institute of Chemical Engineers (Fellow) Institute of Food Technologists, American Association of Cereal Chemists, American Association of Candy Technologists, American Society of Agricultural Engineers,

Publications: Several Encyclopedias (Kirk and Othmer, Chemical Technology; Food Science, Food Technology and Nutrition; Wiley Encyclopedia of Food Science and Technology; Encyclopedia of Life Support Systems); five books, two book chapters; numerous journals.

Education: BSChE Notre Dame PhD University of California, Berkeley

Awards: AIChE Food, Pharmaceutical and Bioengineering Division Award 1998

Clients: Major food processing and pharamaceutical companies.

   

You are here:  Experts > Industry > Food Engineering > Food Engineering/Manufacturing

SubjectDate AskedExpert

Crunchy peanuts in peanut butter3/17/2010J. Peter Clark
  Q: I have noticed that those chunky peanuts in a peanut butter have this extra crunch in it. They don't ...
  A: The peanuts that are ground to make peanut butter and those that are coarsely ground to provide the ...
finding the acidic levels or ph levels3/16/2010Jim Pfister
  Q: I have a wing sauce that i would like to bottle and sell locally. How do i find the pH levels? Where ...
  A: Ira, Good Tuesday Morning. I can address some of your items, but not all. For pH, there is paper ...
Green tea and kombucha3/16/2010Jim Pfister
  Q: I would like to start selling fresh brewed green tea and kombucha tea privately out of my home. Is ...
  A: Jim, Good Tuesday Morning. I had to Google kombucha, since before your letter I had never heard of ...
Roasted Soynuts3/10/2010J. Peter Clark
  Q: I need manufacturing information on roasting large volumes of soybeans. Types of equipment ...
  A: Roasting of legumes can mean frying in oil or heating in hot air. The latter is done in rotating ...
sauce making3/10/2010J. Peter Clark
  Q: Aloha I am in the process of starting a Thai Hot Sauce and Marinade Co. in Thailand My questions ...
  A: Most sauces are cooked to help dissolve ingredients, remove air and develop flavors. If your sauces ...
patenting and manufacturing a salad dressing3/9/2010Jim Pfister
  Q: I have a recipe for a salad dressing which I would like to patent and manufacture to sell in the ...
  A: Lyn, You can do a patent app online now. RE: manufacturing, unless you have $10MM and a spare ...
Home made Hot Sauce3/3/2010Jim Pfister
  Q: Greetings, I do not know if I need a patten ,trademark or copy right for my home made hotsauce. ...
  A: Jane, It depends upon a couple of things, but unless your formulation is completely and totally ...
non-ethyl alcohols in beverages3/1/2010J. Peter Clark
  Q: 1. Is it legal to use non-ethyl alcohols (amyl, butyl etc) in beverages in the US? 2. If so, is the ...
  A: ABV means alcohol by volume and often was determined by distillation. Because alcohols have mostly ...
non-ethyl alcohols in beverages3/1/2010J. Peter Clark
  Q: 1. Is it legal to use non-ethyl alcohols (amyl, butyl etc) in beverages in the US? 2. If so, is the ...
  A: According to Merck Index, amyl and butyl alcohols are toxic, and so are probably not allowed. Small ...
Sorbic acid vs potassium sorbate2/25/2010J. Peter Clark
  Q: I have read extensively about these two preservatives. Potassum sorbate appears to dissociate in ...
  A: It is the sorbate ion that is effective and one gets more of it in sorbic acid than in potassium ...
Preservatives for Beverage2/24/2010J. Peter Clark
  Q: I have reviewed prior questions/answers dating back to Jan 2005. We currently have a ...
  A: Cold fill might still work - that is testable. The addition of particles introduces another ...
BBQ Sauce2/24/2010J. Peter Clark
  Q: My wife and I are wanting to start our own Sauce company using an old family bbq sauce recipe. I've ...
  A: Tom, Purdue has a very good food science department and at least one professor in extension whose ...
peanut butter manufacturing2/23/2010J. Peter Clark
  Q: Peter Clark, I am an Algerian trying to venture into peanut butter manufacturing (in small scale), ...
  A: Ali, I think you can use lecithin as an emulsifier in peanut butter, but you should test to be ...
sauces2/23/2010J. Peter Clark
  Q: I'm in the process of manufacturing my own brand of jerk sauces, at present I give sample to friends ...
  A: Chris, You need to find a co-manufacturer or co-packer. There usually are trade associations for ...
preservative2/17/2010J. Peter Clark
  Q: i want to know how to preserve coconut, green pepper, garlic, lemon, oil chutney . what are the ...
  A: Chutneys are generally preserved by a combination of heating and formulation to make them acidic and ...
Hot Fill Plastic Jar Packaging Line2/17/2010Jim Pfister
  Q: Mr Pfister- Thank you so much for providing this valuable resource to small producers. I was ...
  A: Brock, Good Thursday Morning. You should first qualify whether you want to buy new, or would used ...
soft/chewy cookie shelf life2/17/2010J. Peter Clark
  Q: We are a couple of Americans living in Moscow and intending to develop a brand of soft/chewy cookies ...
  A: There may be some sulfur dioxide in some molasses, but probably not in honey. Syrups make the ...
soft/chewy cookie shelf life2/17/2010J. Peter Clark
  Q: We are a couple of Americans living in Moscow and intending to develop a brand of soft/chewy cookies ...
  A: Soft, chewy cookies use humectants, such as corn syrup, molasses, and honey to plasticize the ...
peanut butter manufacturing2/16/2010J. Peter Clark
  Q: Peter Clark, I am an Algerian trying to venture into peanut butter manufacturing (in small scale), ...
  A: In the US, peanut butter must contain at least 90 % peanuts, with the balance being added oil, salt, ...
Non-Compete?2/15/2010Jim Pfister
  Q: Good day to you and thank you for providing this service! I manufacture a unique and innovative ...
  A: Ari, You need to check with your attorney, but my belief is that you can put darn near anything you ...
Non-Compete?2/15/2010Jim Pfister
  Q: Good day to you and thank you for providing this service! I manufacture a unique and innovative ...
  A: Ari, Good Monday Afternoon. The answer is "probably". Even if you go the patent or trade secret ...
Do you have to heat peanut butter?2/14/2010J. Peter Clark
  Q: Peter, I bottle a peanut sauce that I also serve in my restaurants. The bottled version that is ...
  A: The right way to preserve your sauce depends on the formula, but it may not be necessary to heat it. ...
Mustard manufacture2/13/2010J. Peter Clark
  Q: If oil is pressed from mustard, what are the uses of the oil and meal.?
  A: Mustard seeds can be pressed to express the oil, which is pungent and irritating. It has medicinal ...
Marinade, is pasteurization necessary or not2/12/2010J. Peter Clark
  Q: I am trying to develope a marinade in which the finished product contains 50% vinegar, 15% salt and ...
  A: I am confident that you can safely package that material cold because of its low pH and high vinegar ...
Frozen Kolaches2/4/2010Jim Pfister
  Q: I own a kolache bakery and have been baking and freezing sweet kolaches for 5 years now. A kolache ...
  A: Jody, I usually tell people that unless they have $10MM lying around to outfit their own factory, ...
Manufacturing of frozen pastries1/28/2010Jim Pfister
  Q: I am looking for a manufacturer that would produce my pastry products and also freeze and package ...
  A: Kattien, Good Morning. I would always start by getting on the websites for the Contract Packers ...
monoglyceride from palm oil1/26/2010J. Peter Clark
  Q: How do we manufacture of monoglyceride from palm oil? And what is the usage of this material?
  A: Mono- and di-glycerides are used as emulsifiers in foods. One way to make them is to mix palm oil, ...
suitable films for MAP packaging1/21/2010J. Peter Clark
  Q: I am a R&D manager in a fresh cut factory . I want to know which films are suitable for vegetable ...
  A: Leila, Thank you for clarifying. I had assumed by MAP, you meant an enriched carbon dioxide ...
suitable films for MAP packaging1/20/2010J. Peter Clark
  Q: I am a R&D manager in a fresh cut factory . I want to know which films are suitable for vegetable ...
  A: You need films that are impermeable to oxygen and carbon dioxide. I think common ones are PET ...
Frozen food co packer needed - or dehydrator1/19/2010Jim Pfister
  Q: I've have been looking everywhere, but I can not seem to find a co packer who can manufacture and ...
  A: Eric, Good Morning. I can only put you onto some resources that maybe you have already tried. One ...
Hot Sauce Pasteurization1/18/2010J. Peter Clark
  Q: Peter. My name is Jasmine and I've recently begun bottling and selling my own homemade hot sauce. ...
  A: Jasmine, By coincidence, I am in Africa as a volunteer expert working on hot sauce. You can ...
my own sauce1/14/2010Jim Pfister
  Q: i want to see if i can start selling my home made sauce this is kind of like the tostitos chips and ...
  A: Paula, Good Tuesday Morning. Since you are just starting - and since you question is by far the #1 ...
ascorbic acid1/12/2010Jim Pfister
  Q: My small Company is going to start making salsas and chow chow. We cook everything at 175 degrees ...
  A: Andy, In terms of quantities, you need a food technologist - not an engineer - to answer that. I ...
Manufacturing Organic Babyfood1/10/2010J. Peter Clark
  Q: I have an idea to manufacture and distribute organic poi-based baby food. I already have an idea of ...
  A: Roze, If you are thinking about poi, you are probably in Hawaii. You can ask the extension ...
Extend the shelf life of my homemade flavored nuts1/8/2010J. Peter Clark
  Q: I would like to start selling my homemade flavored nuts however all the recipes indicate that the ...
  A: Diane, It depends on how you are flavoring your nuts, but in almost any case, one would expect ...
juices1/7/2010Jim Pfister
  Q: i have heard the even pure juices (with no added sugar, color and preservatives) don't contain most ...
  A: In most countries, you must actually contain what the label says. There's no doubt that when a juice ...
How to patent/bulk manufacture candied pecans1/4/2010J. Peter Clark
  Q: How do I manufacture or patent an old family recipe of candied pecans?
  A: These are two different questions. It is usually difficult to patent recipes, especially if they are ...
Creating a Commercial Marinade/Cooking Sauce1/4/2010Jim Pfister
  Q: Is it possible to mix the ingredients of my marinade in a commercial kitchen that I rent for a ...
  A: Mekaiel, My first question back to you is HOW will you transport from the kitchen to the packer? ...
Salad Dressing1/3/2010Jim Pfister
  Q: I own a catering business that has been in business for 26 years. We have been making a salad ...
  A: Tonya, Good Monday Morning. Since you haven't told me otherwise, I'm assuming yours is a smaller, ...
Hot Sauce1/3/2010Phil Bourque
  Q: I would like to know what should be the ratio of vinegar and water per gallon to make hot sauce and ...
  A: The amount of vinegar really depends on the natural acidity is in the sauce created by peppers, etc. ...

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Questions by
Active Experts:
Jim PfisterJ. Peter ClarkPhil Bourque
   

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