Method for producing fluoropolymer aqueous dispersion and fluoropolymer aqueous dispersion

A fluoropolymer aqueous dispersion comprising

• a polymer (I) comprising a polymerization unit (I) derived from a monomer (I) represented by the general formula (I);
• a fluoropolymer;
• a nonionic surfactant;
• and
• an aqueous medium,
• wherein
• a content of the polymer (I) is 500 mass ppm or less based on the fluoropolymer aqueous dispersion,
• the fluoropolymer aqueous dispersion has a viscosity at 25° C. of 100 mPa·s or less,
• an anionic charge density of a polymer particle of the fluoropolymer is 8.0 to 40 μeq/g,
• a content of the fluoropolymer is 50% by mass or more and 75% by mass or less based on the fluoropolymer aqueous dispersion, and
• a content of the nonionic surfactant is 1.0% by mass or more and 12% by mass or less based on the fluoropolymer:
• wherein X1 and X3 are each independently F, Cl, H, or CF3;
• X2 is H, F, an alkyl group, or a fluorine-containing alkyl group;
• A0 is an anionic group;
• R is a linking group;
• Z1 and Z2 are each independently H, F, an alkyl group, or a fluorine-containing alkyl group;
• and m is an integer of 1 or more.