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Extra firm tofu

Image: Open Food Facts (CC BY-SA 3.0)

Common questions

Is Extra firm tofu healthy?

Extra firm tofu scores 82/100 on Scout's independent analysis of ingredients, additives, and lab results — a fair-to-good score — solid, with tradeoffs. This extra firm tofu is made from organic soybeans and water, with calcium sulfate as a coagulant, resulting in a minimally processed product.

How processed is Extra firm tofu?

Extra firm tofu is NOVA Group 1: Unprocessed or Minimally Processed Foods.

Which ingredients drive Extra firm tofu's score?

In Scout's ingredient-by-ingredient analysis, Organic soybeans, Calcium sulfate count in its favor. The full breakdown, with why each one matters, is in the Key ingredients section on this page.

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Extra firm tofu

Kirkland Signature
82 Good

Analysis updated August 2026 · How Scout scores

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Near you

Kirkland Signature is carried at Costco stores. Find one within 25 miles.

At a glance

Beneficial ingredients 2
Harmful ingredients 0
Owned by Costco
Category Beans
Summary

This extra firm tofu is made from organic soybeans and water, with calcium sulfate as a coagulant, resulting in a minimally processed product. The use of organic soybeans ensures a high-quality source of plant-based protein without exposure to synthetic pesticides. The simple ingredient list and minimal processing contribute to its high score, making it a healthy choice for those seeking plant-based protein.

Key ingredients 3

Organic soybeans
Good

Organic soybeans are a high-quality source of plant-based protein and essential nutrients. Being organic, they are grown without synthetic pesticides or fertilizers, reducing potential exposure to harmful chemicals. They provide a complete amino acid profile, beneficial for vegetarians and vegans.

Risks

Soybeans may cause allergic reactions in some individuals and contain phytoestrogens, which can affect hormone levels if consumed in large amounts.

Benefits

Rich in protein, fiber, and essential fatty acids, supporting heart health and muscle maintenance.

Calcium sulfate
Good

Calcium sulfate is used as a coagulant in tofu production, contributing to its firm texture. It is a source of calcium, which is important for bone health. The use of calcium sulfate in tofu is minimal and generally considered safe.

Risks

Excessive intake of calcium sulfate is unlikely in a balanced diet, but overconsumption of calcium can lead to kidney stones.

Benefits

Provides a source of calcium, supporting bone health and contributing to the firmness of tofu.

See more about Calcium sulfate →
Water
Neutral

Water is a neutral ingredient used as a solvent and to provide moisture. It is essential for the texture and consistency of tofu. There are no health concerns associated with water in this context.

See more about Water →

Processing

Group 1 · Minimally processed

Unprocessed or Minimally Processed Foods

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