| Variable | PC1 | PC2 |
| Hardness before cooking | 0.356 | −0.345 |
| Hardness after cooking | −0.394 | −0.042 |
| Cooking duration | 0.384 | −0.182 |
| Grains density | −0.030 | −0.793 |
| Weight of 1000 grains | −0.321 | −0.462 |
| Length | −0.394 | −0.038 |
| Width | −0.395 | −0.004 |
| Thickness | −0.394 | 0.033 |