How can steamed pitaya steamed bread not change color?

You can add a little monascus powder or edible alkali to the dough.

This will keep the color of pitaya unchanged. Another thing to note is that you should also pay attention to it when stirring, and you must stir it evenly to avoid discoloration.

Because pitaya contains anthocyanins, it will decompose when heated, and steamed bread dyed with pitaya will naturally change color when steamed.

Introduction to pitaya:

Pitaya (scientific name: Pitaya? Foo-Lon') is a cultivated variety of Cactus, belonging to the measuring ruler. It climbs up the juicy bush and has air roots. Flowers funnel-shaped and open at night; Scales are ovate-lanceolate to lanceolate, calyx-shaped perianth is yellow-green, linear to linear-lanceolate, petaloid perianth is white, oblong-oblanceolate, filaments are yellow-white, styles are yellow-white, berries are red, oblong, fruit umbilicus is small, and pulp is white-red.

Distributed in Central America to northern South America, widely cultivated all over the world, climbing on trunks, rocks or walls by air roots, with an altitude of 3-300 meters. Pitaya is a tropical and subtropical fruit, which likes light, shade, heat, drought, fat and barren.