Why are some food-grade tank vehicles, like milk tankers, built without baffles even though this increases surge?

Pick an answer

1. Regulations forbid baffles in any food-grade tank
2. Baffles would trap residue and make full sanitary cleaning between loads difficult
3. Food-grade liquids never surge regardless of tank design
4. Baffleless tanks are cheaper to manufacture, and cost is the only reason any tank skips them

Correct!

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