Table 4.

Acrylamide levels (μg/kg) in potato crisps made from 20 varieties of potatoes grown in the UK (mean ± standard deviation, n = 3).

Variety	2-Months storage	6-Months storage	pa
Hermes	1410 ± 372	1560 ± 499	NS
Lady Claire	178 ± 71	138 ± 27	NS
Lady Rosetta	340 ± 47	655 ± 271	NS
Saturna	663 ± 69	422 ± 132	∗
Verdi	119 ± 36	142 ± 55	NS
Challenger	812 ± 371	1030 ± 586	NS
Daisy	496 ± 114	1240 ± 504	NS
Desiree	3460 ± 1220	4150 ± 1226	NS
Fontane	550 ± 297	576 ± 241	NS
Innovator	1850 ± 318	3660 ± 168	∗∗∗
King Edward	1480 ± 468	1730 ± 531	NS
Lady Blanca	3840 ± 2386	3500 ± 984	NS
Lady Olympia	2190 ± 1424	1390 ± 924	NS
Maris Piper	1860 ± 759	1300 ± 482	NS
Markies	609 ± 219	624 ± 164	NS
Pentland Dell	5540 ± 572	5180 ± 674	NS
Ramos	833 ± 319	1200 ± 357	NS
Russet Burbank	2690 ± 992	2870 ± 785	NS
Umatilla Russet	3000 ± 559	2430 ± 1743	NS
Harmony	2620 ± 493	3430 ± 778	NS

^aSignificant effect of storage time on acrylamide concentration (^∗p < 0.05 and ^∗∗∗p < 0.001; NS, not significant).