Learn Spanish (Latin America): Tengo poca tolerancia; ese ají es inaguantable para mí. - I have low tolerance; that chili pepper is unbearable for me.

Since this sentence describes a threshold of intensity, it's perfect for the tan + adjective + como para + infinitive structure. You could say: Ese ají es tan inaguantable como para no comerlo (That chili pepper is so unbearable as to not eat it) or Ese ají es tan inaguantable como para hacerme llorar (That chili pepper is so unbearable as to make me cry).

Why use poca for "low" tolerance instead of baja?

While English uses "low" to describe tolerance on a scale, Spanish treats tolerance as an amount or quantity you possess. Therefore, you have "little" tolerance (poca tolerancia) or "a lot of" tolerance (mucha tolerancia). You might hear baja tolerancia occasionally due to English influence, but poca sounds much more natural.

I recognize the root of inaguantable. Is this a common way to form adjectives?

Yes! It comes from the verb aguantar (to bear or tolerate). By adding the negative prefix in- and the suffix -able, you get inaguantable (unbearable). This is a very common pattern in Spanish. Other examples include explicar to inexplicable (unexplainable) or creer to increíble (incredible/unbelievable).

Is ají the standard word for chili pepper everywhere in Latin America?