How to make tofu at home for small-scale sales

Tofu is a practical product for a household food business because soybeans are widely available, the process uses basic kitchen equipment, and customers can buy it fresh every day. A small producer can begin with a few kilograms of soybeans, test local demand, and increase output after developing a consistent recipe.

The main ingredients are dried soybeans, clean water, and a food-safe coagulant. In Indonesia, vinegar, calcium sulfate, or magnesium chloride may be used to separate soy milk into curds and whey. Each coagulant produces a slightly different texture, so testing small batches is important before selling regularly.

Good tofu depends on cleanliness, accurate timing, and careful handling. Farmers who grow soybeans or source directly from nearby producers can build a stronger supply story, while readers looking for practical agricultural information can explore village farming resources for related ideas.

Choose ingredients and equipment

Select mature, dry soybeans without mold, insects, unusual odors, or excessive broken pieces. Old beans may produce less milk and tofu with a rough texture. For a first trial, prepare 1 kilogram of soybeans, 8–10 liters of clean water, and a measured coagulant.

Useful equipment includes a large soaking container, blender or grinder, cooking pot, fine cloth, strainer, tofu mold, weight, knife, food thermometer, and covered storage containers. Stainless steel or food-grade plastic is easier to clean than porous wood. Every surface that touches the tofu should be washed and dried before production.

Soak and grind the soybeans

Rinse the soybeans two or three times, then soak them in plenty of clean water for 8–12 hours. The beans will expand considerably, so the container should have enough space. In warm weather, change the soaking water if it develops a sour smell or becomes excessively foamy.

Drain and rinse the softened beans before grinding. Work in several batches, adding water gradually until the mixture becomes a smooth slurry. Strain the slurry through a clean muslin cloth or fine filter, pressing firmly to extract the soy milk. The remaining pulp, called okara, can be used in crackers, livestock feed, compost, or other food products if handled safely.

Cook the soy milk and add coagulant

Bring the filtered soy milk to a full boil, then reduce the heat and cook it for 10–15 minutes. Stir frequently because soy milk can scorch or rise quickly. Cooking removes the raw bean flavor and improves the final taste. Skim off excess foam while keeping the milk hot.

Dissolve the chosen coagulant in a small amount of warm water. Turn off the heat and allow the soy milk to cool slightly, usually to about 75–85°C. Add the coagulant gradually while stirring slowly in one direction. Stop stirring when white curds begin to form, cover the pot, and wait 10–20 minutes.

If the liquid remains milky, add a small amount of diluted coagulant and wait again. Avoid adding too much because it can create a bitter flavor and a crumbly texture. The curds are ready when they separate clearly from pale yellow-green whey.

Press the curds into tofu

Line the mold with clean cheesecloth, then ladle the curds into it. Fold the cloth over the top and place a flat cover above the curds. Apply an even weight for 15–30 minutes, depending on the firmness required. More pressure and time produce dense tofu, while lighter pressing creates a softer block.

Remove the pressed tofu from the mold and place it in clean, cold water. This stops further cooking and helps firm the surface. Cut the block into portions of equal size so customers receive consistent pieces. Keep finished tofu chilled and sell it as soon as possible because fresh tofu has a short shelf life.

Plan a manageable production batch

A home producer should record the amount of beans, water, coagulant, finished tofu, and unsold product from every batch. These notes reveal whether the recipe is profitable and help maintain the same texture from day to day. A basic cost calculation should include fuel, packaging, labor, transport, cleaning supplies, and market fees.

The figures below are working estimates rather than fixed prices. Local soybean costs, fuel prices, equipment quality, and selling channels will change the result.

Begin with one batch per day until the process becomes reliable. Producing too much before finding regular buyers can create waste, especially when refrigeration is limited. Pre-orders from neighbors, food stalls, small restaurants, and village markets provide a safer starting point.

Package and sell with confidence

Allow tofu to drain well before packing. Use clean food-grade plastic, sealed trays, or containers with a small amount of clean water when appropriate for the product style. Mark the production date and recommended selling period. Keep tofu away from raw meat, dirty utensils, direct sunlight, and warm transport conditions.

A simple brand can emphasize freshness, local soybeans, traditional preparation, or convenient portion sizes. Offer samples to warung owners and ask for feedback on firmness, color, flavor, and price. Producers who want to connect their work with wider village development can learn more about the organization behind this publication through about FolderDesa.

Practical steps for a stronger home business

• Standardize one recipe before offering several tofu textures or flavors.
• Weigh every retail portion so pricing remains fair and costs stay visible.
• Keep a daily sanitation checklist for water, cloths, molds, pots, and storage containers.
• Use pre-orders to reduce leftovers and plan the quantity of soybeans to soak.
• Set aside part of the profit for a thermometer, better packaging, or a small refrigerator.

Sales records should show which customers buy most often and which days produce the highest demand. Over time, a home tofu maker may supply breakfast vendors, catering groups, village-owned enterprises, or tourism stalls. A dependable product, clean preparation area, and honest labeling will do more for repeat sales than elaborate packaging.

Begin with a measured one-kilogram batch, document each stage, and offer the first pieces to a small group of local buyers. Improve the texture and packaging from their feedback, then increase production only when orders become steady.