It's not. The u003ca href=u0022https://amzn.to/3fvZkRtu0022 target=u0022_blanku0022 rel=u0022noreferrer noopener sponsored nofollowu0022u003ered curry pasteu003c/au003e (at least the brand I use) has a hint of heat, but not much. If you'd like to spice it up, you can mince a fresh chili and sauté it with the other veggies at the beginning, or add red pepper flakes when you pour in the sauce.u003cbr/u003e