Sounds like you have the recipe down pretty good.... I read somewhere, meat will only get to about 15 degrees below the oven temp setting.... For what reason, they didn't say... soooo, you are good to go... If you think the temps aren't killing all the pathogens, I'll put a couple of pasteurization table below so you can be sure the jerky is pasteurized and safe to eat....
When I use the tables below, I usually double or triple the "time required" for insurance.....
Temperature Time Temperature Time
°F (°C) (Minutes) °F (°C) (Seconds)
130 (54.4) 112 min... 146 (63.3) 169 sec
131 (55.0) 89 min.... 147 (63.9) 134 sec
132 (55.6) 71 min.... 148 (64.4) 107 sec
133 (56.1) 56 min.... 149 (65.0) 85 sec
134 (56.7) 45 min.... 150 (65.6) 67 sec
135 (57.2) 36 min.... 151 (66.1) 54 sec
136 (57.8) 28 min.... 152 (66.7) 43 sec
137 (58.4) 23 min.... 153 (67.2) 34 sec
138 (58.9) 18 min.... 154 (67.8) 27 sec
139 (59.5) 15 min.... 155 (68.3) 22 sec
140 (60.0) 12 min.... 156 (68.9) 17 sec
141 (60.6) 9 min...... 157 (69.4) 14 sec
142 (61.1) 8 min...... 158 (70.0) 0 sec
143 (61.7) 6 min.......
144 (62.2) 5 min.......
145 (62.8) 4 min.......
Table C.1: Pasteurization times for beef, corned beef, lamb, pork and cured pork (FDA, 2009, 3-401.11.B.2).
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Temperature........
...................... Time
°F (°C).............. 12% fat
136 (57.8)......... 81.4 min
137 (58.3)........ 65.5 min
138 (58.9)........ 52.9 min
139 (59.4)........ 43 min
140 (60.0)........ 35 min
141 (60.6)........ 28.7 min
142 (61.1)........ 23.7 min
143 (61.7)........ 19.8 min
144 (62.2)........ 16.6 min
145 (62.8)........ 13.8 min
146 (63.3)........ 11.5 min
148 (64.4)........ 7.7 min
150 (65.6)........ 4.9 min
152 (66.7)........ 2.8 min
154 (67.8)........ 1.6 min
156 (68.9)........ 1 min
158 (70.0)........ 40.9 sec
160 (71.1)........ 26.9 sec
162 (72.2)........ 17.7 sec
164 (73.3)........ 11.7 sec
166 (74.4)........ 0 sec
Table C.2: Pasteurization times for a 7D reduction in Salmonella for chicken and turkey (FSIS, 2005).
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