FAQ
Common questions
Can I use ultra-pasteurized milk for cheese?
No, and this is the #1 beginner mistake. Ultra-pasteurized milk has proteins denatured by high heat that won't form a curd. Check the carton: you want 'pasteurized,' not 'ultra-pasteurized.' Regular whole milk from most grocery stores works fine. Organic milk is often ultra-pasteurized, so check that label especially carefully.
How much does it cost to make cheese at home?
The starter kit runs about $35. Add a good thermometer ($35) and butter muslin ($12) and you're at roughly $80 total. Ongoing costs are cheap: a gallon of whole milk ($4-6) makes about a pound of fresh mozzarella. The milk is the main ongoing cost.
Do I need a special pot?
Stainless steel only (aluminum reacts with acidic milk and can ruin the curd). Cast iron imparts metallic flavor. You may already own a suitable stainless pot; an 8-quart size is ideal for a 1-2 gallon batch. Check before buying.
How long does homemade mozzarella last?
Fresh mozzarella at its best is same-day. Store in salted water (about 1 teaspoon salt per cup of water) in the fridge and it keeps 3-5 days, but the texture softens. Freeze it if you won't use it within a few days. It loses some stretch but still melts beautifully on pizza.
What's the difference between animal rennet and vegetable rennet?
Animal rennet (from calf stomachs) is traditional and works reliably across all cheese types. Vegetable rennet is suitable for vegetarians and fine for fresh cheeses, though some aged cheeses develop off-flavors over long aging. For beginner mozzarella, the difference is invisible. Starter kits use whichever they stock.
Is cheesemaking complicated?
Fresh cheese like mozzarella is genuinely easy. If you can follow a recipe and read a thermometer, you'll succeed on your first batch. Aged hard cheeses are a different story: they take months and require controlled environments. Start fresh, build intuition, and complexity becomes interesting rather than intimidating.