Breakdown of Esta peça é delicada, então eu vou enxaguar à mão.
Questions & Answers about Esta peça é delicada, então eu vou enxaguar à mão.
Traditionally, esta is used for something close to the speaker, while essa is used for something close to the listener or something already mentioned.
In everyday Brazilian Portuguese, though, this distinction is often relaxed, and many people would also say essa peça in natural speech. So esta peça is correct, but essa peça may sound more common in conversation depending on the context.
Because peça is a feminine noun in Portuguese, and adjectives usually agree in gender and number with the noun they describe.
So:
- peça = feminine singular
- delicada = feminine singular
If the noun were masculine, you would use delicado instead.