Dairy & Food Testing

Seewald Laboratories, Inc. is accredited by the Pennsylvania Department of Agriculture (F.D.A. #42-142).

PA Department of Agriculture Certificate

PA Department of Agriculture Web Site

Frozen Dessert Users Guide

Frozen Desserts and Milk Limits

Products We Test

  • Bread
  • Butter
  • Butter Milk
  • Canned Foods
  • Cheese
  • Chocolate Milk
  • Cottage Cheese
  • Dip & Sauce
  • Dried Dairy Product
  • Dried Milk
  • Evaporated Milk
  • Ice Cream
  • Jellies & Jam
  • Juice
  • Lactobacillus acidophilus
  • Lactobacillus bulgaris
  • Light & Heavy Cream
  • Punch
  • Sour Cream
  • Sweet & Condensed Milk
  • Tea
  • Vegetable
  • Whey Product
  • Whipped Cream
  • Yogurt

Approved Methods

Pennsylvania Department of Agriculture
Laboratory Codes and Procedures

2 – Standard Plate Count
5 – Petriflim Aerobic Count
D3 – DelvoTest P 5 pack
12 – Direct Somatic Cell Count
20 – Petrifilm Coliform Count
21 – Coliform Count
22 – Pasteurized Milk Containers
24 – Dairy Waters
29 – Phosphatase Test – Charm

Additional Testing

  • % Brix 45-93%
  • 3M® Petrifilm – Staph Express Count Plate
  • 3M® Petrifilm – Yeast & Mold
  • 3M®Petrifilm – Listeria
  • Activated Water – Aqua Lab
  • Direct Microscopic Count & Observations
  • pH
  • Pour Plate – Yeast & Mold
  • Reveal® 2.0 – Salmonella Test System